• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

thxpress_search_the_forum Search Opus
  1. B

    How are streetlights supposed to look through good binoculars?

    Comets. Noctilucent clouds. Aurorae. Street and other lights in towns have resulted in an overall reduction in star visibility of 6 times in the last 30 years at the zenith and even more at lower elevations. In addition, they have impacted wild life and even human health. And yes, you are...
  2. B

    How are streetlights supposed to look through good binoculars?

    Is the offending binocular a roof prism type? Then it is a poor quality prism. There are also many types of street light. Sodium, LED of various types and others. They also have different dimensions and different shaped filaments, elements or covers. Some very good binoculars show little...
Back
Top